Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] '<Virus name>' = '%PROGRAM_FILES%\<Virus name>.exe'
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
Executes the following:
- %WINDIR%\explorer.exe
- <SYSTEM32>\taskkill.exe /im taskmgr.exe /f
- <SYSTEM32>\taskkill.exe /im Explorer.exe /f
Terminates or attempts to terminate
the following system processes:
- %WINDIR%\Explorer.EXE
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'RecommendedLevel' = '00011000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'MinLevel' = '00011000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'Flags' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1805' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '1805' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'DisplayName' = 'Internet'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'Icon' = 'inetcpl.cpl#001313'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'Description' = 'This zone contains all Web sites you haven't placed in other zones'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] 'CurrentLevel' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] 'Flags' = '00000003'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] 'CurrentLevel' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] 'CurrentLevel' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'CurrentLevel' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] 'Description' = 'This zone contains Web sites that could potentially damage your computer or data.'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] 'DisplayName' = 'Restricted sites'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] 'Icon' = 'inetcpl.cpl#00004481'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] 'RecommendedLevel' = '00012000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] 'MinLevel' = '00012000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] 'Flags' = '00000047'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '1805' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] 'Flags' = '00000021'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] 'Description' = 'This zone contains all Web sites that are on your organization's intranet.'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] 'DisplayName' = 'Local intranet'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] 'DisplayName' = 'My Computer'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] 'Description' = 'Your computer'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] 'CurrentLevel' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] 'Icon' = 'explorer.exe#0100'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] 'Description' = 'This zone contains Web sites that you trust not to damage your computer or data.'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] 'DisplayName' = 'Trusted sites'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] 'Icon' = 'inetcpl.cpl#00004480'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] 'RecommendedLevel' = '00010000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] 'MinLevel' = '00010000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] 'MinLevel' = '00010000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] 'Icon' = 'shell32.dll#0018'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] 'RecommendedLevel' = '00010500'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '1805' = '00000000'
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\ad[1].asp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\web[1].html
- %WINDIR%\RGI2.tmp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\web[1].html
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\hq[1].asp
- %PROGRAM_FILES%\<Virus name>.exe
Deletes the following files:
- %WINDIR%\RGI2.tmp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\web[1].html
Network activity:
Connects to:
- 'www.ch###ian.net':80
- 'localhost':1035
TCP:
HTTP GET requests:
- www.ch###ian.net/ad.asp?id###############################
- www.ch###ian.net/web.html
- www.ch###ian.net/hq.asp?id#########################
UDP:
- DNS ASK www.ch###ian.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'BaseBar' WindowName: 'ChanApp'
- ClassName: 'OleMainThreadWndClass' WindowName: ''
- ClassName: 'SysListView32' WindowName: ''
- ClassName: 'CSCHiddenWindow' WindowName: ''
- ClassName: 'SystemTray_Main' WindowName: ''
- ClassName: '' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Proxy Desktop' WindowName: ''
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: 'MS_AutodialMonitor' WindowName: ''
